src/mesa/main/image.h

   1 /**
   2  * \file image.h
   3  * Image handling.
   4  */
   5
   6 /*
   7  * Mesa 3-D graphics library
   8  * Version:  6.1
   9  *
  10  * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
  11  *
  12  * Permission is hereby granted, free of charge, to any person obtaining a
  13  * copy of this software and associated documentation files (the "Software"),
  14  * to deal in the Software without restriction, including without limitation
  15  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  16  * and/or sell copies of the Software, and to permit persons to whom the
  17  * Software is furnished to do so, subject to the following conditions:
  18  *
  19  * The above copyright notice and this permission notice shall be included
  20  * in all copies or substantial portions of the Software.
  21  *
  22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  23  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  25  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  26  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  27  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28  */
  29
  30
  31 #ifndef IMAGE_H
  32 #define IMAGE_H
  33
  34
  35 #include "mtypes.h"
  36
  37
  38 extern void
  39 _mesa_swap2( GLushort *p, GLuint n );
  40
  41 extern void
  42 _mesa_swap4( GLuint *p, GLuint n );
  43
  44 extern GLint
  45 _mesa_sizeof_type( GLenum type );
  46
  47 extern GLint
  48 _mesa_sizeof_packed_type( GLenum type );
  49
  50 extern GLint
  51 _mesa_components_in_format( GLenum format );
  52
  53 extern GLint
  54 _mesa_bytes_per_pixel( GLenum format, GLenum type );
  55
  56 extern GLboolean
  57 _mesa_is_legal_format_and_type( GLenum format, GLenum type );
  58
  59
  60 extern GLvoid *
  61 _mesa_image_address( const struct gl_pixelstore_attrib *packing,
  62                      const GLvoid *image, GLsizei width,
  63                      GLsizei height, GLenum format, GLenum type,
  64                      GLint img, GLint row, GLint column );
  65
  66
  67 extern GLint
  68 _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
  69                         GLint width, GLenum format, GLenum type );
  70
  71
  72 extern GLint
  73 _mesa_image_image_stride( const struct gl_pixelstore_attrib *packing,
  74                           GLint width, GLint height,
  75                           GLenum format, GLenum type );
  76
  77 extern void
  78 _mesa_unpack_polygon_stipple( const GLubyte *pattern, GLuint dest[32],
  79                               const struct gl_pixelstore_attrib *unpacking );
  80
  81
  82 extern void
  83 _mesa_pack_polygon_stipple( const GLuint pattern[32], GLubyte *dest,
  84                             const struct gl_pixelstore_attrib *packing );
  85
  86
  87 extern GLvoid *
  88 _mesa_unpack_bitmap( GLint width, GLint height, const GLubyte *pixels,
  89                      const struct gl_pixelstore_attrib *packing );
  90
  91 extern void
  92 _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source,
  93                    GLubyte *dest, const struct gl_pixelstore_attrib *packing );
  94
  95
  96 extern void
  97 _mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLuint transferOps,
  98                               GLuint n, GLfloat rgba[][4]);
  99
 100 extern void
 101 _mesa_pack_rgba_span_float( GLcontext *ctx,
 102                             GLuint n, CONST GLfloat rgba[][4],
 103                             GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 104                             const struct gl_pixelstore_attrib *dstPacking,
 105                             GLuint transferOps );
 106
 107
 108 extern void
 109 _mesa_pack_rgba_span_chan( GLcontext *ctx,
 110                            GLuint n, CONST GLchan rgba[][4],
 111                            GLenum dstFormat, GLenum dstType, GLvoid *dstAddr,
 112                            const struct gl_pixelstore_attrib *dstPacking,
 113                            GLuint transferOps );
 114
 115
 116 extern void
 117 _mesa_unpack_color_span_chan( GLcontext *ctx,
 118                               GLuint n, GLenum dstFormat, GLchan dest[],
 119                               GLenum srcFormat, GLenum srcType,
 120                               const GLvoid *source,
 121                               const struct gl_pixelstore_attrib *srcPacking,
 122                               GLuint transferOps );
 123
 124
 125 extern void
 126 _mesa_unpack_color_span_float( GLcontext *ctx,
 127                                GLuint n, GLenum dstFormat, GLfloat dest[],
 128                                GLenum srcFormat, GLenum srcType,
 129                                const GLvoid *source,
 130                                const struct gl_pixelstore_attrib *srcPacking,
 131                                GLuint transferOps );
 132
 133
 134 extern void
 135 _mesa_unpack_index_span( const GLcontext *ctx, GLuint n,
 136                          GLenum dstType, GLvoid *dest,
 137                          GLenum srcType, const GLvoid *source,
 138                          const struct gl_pixelstore_attrib *srcPacking,
 139                          GLuint transferOps );
 140
 141
 142 extern void
 143 _mesa_pack_index_span( const GLcontext *ctx, GLuint n,
 144                        GLenum dstType, GLvoid *dest, const GLuint *source,
 145                        const struct gl_pixelstore_attrib *dstPacking,
 146                        GLuint transferOps );
 147
 148
 149 extern void
 150 _mesa_unpack_stencil_span( const GLcontext *ctx, GLuint n,
 151                            GLenum dstType, GLvoid *dest,
 152                            GLenum srcType, const GLvoid *source,
 153                            const struct gl_pixelstore_attrib *srcPacking,
 154                            GLuint transferOps );
 155
 156 extern void
 157 _mesa_pack_stencil_span( const GLcontext *ctx, GLuint n,
 158                          GLenum dstType, GLvoid *dest, const GLstencil *source,
 159                          const struct gl_pixelstore_attrib *dstPacking );
 160
 161
 162 extern void
 163 _mesa_unpack_depth_span( const GLcontext *ctx, GLuint n, GLfloat *dest,
 164                          GLenum srcType, const GLvoid *source,
 165                          const struct gl_pixelstore_attrib *srcPacking );
 166
 167 extern void
 168 _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
 169                        GLenum dstType, const GLfloat *depthSpan,
 170                        const struct gl_pixelstore_attrib *dstPacking );
 171
 172
 173 extern void *
 174 _mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,
 175                     GLenum format, GLenum type, const GLvoid *pixels,
 176                     const struct gl_pixelstore_attrib *unpack );
 177
 178
 179 #endif